CN210211226U - Servo electric needle valve hot runner device - Google Patents

Servo electric needle valve hot runner device Download PDF

Info

Publication number
CN210211226U
CN210211226U CN201920804716.5U CN201920804716U CN210211226U CN 210211226 U CN210211226 U CN 210211226U CN 201920804716 U CN201920804716 U CN 201920804716U CN 210211226 U CN210211226 U CN 210211226U
Authority
CN
China
Prior art keywords
push rod
driving
gear
fixing block
servo electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920804716.5U
Other languages
Chinese (zh)
Inventor
Yangang Zhang
张彦刚
Yingya Zhang
张英芽
Caiyun Jiang
蒋财运
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN MICOTEC CO Ltd
Original Assignee
SHENZHEN MICOTEC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN MICOTEC CO Ltd filed Critical SHENZHEN MICOTEC CO Ltd
Priority to CN201920804716.5U priority Critical patent/CN210211226U/en
Application granted granted Critical
Publication of CN210211226U publication Critical patent/CN210211226U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The utility model discloses a servo electric needle valve hot runner device, which comprises a servo electric push rod device, a connecting rod, a driving base, a splitter plate and a hot nozzle, wherein the servo electric push rod device, the connecting rod and the driving base are assembled along the horizontal direction of an X axis, and the driving base and the hot nozzle are respectively connected with the splitter plate in a 90-degree manner along the vertical direction of a Z axis; the servo electric push rod device is connected with the template through a first fastening screw and a positioning pin; the driving base is positioned with the flow distribution plate through a pin, and is connected with the flow distribution plate through a second fastening screw; the hot nozzle comprises a valve needle and a sprue wire, the hot nozzle is connected with the flow distribution plate in a thread mode, the valve needle is connected with a valve needle fixing block in the driving part and guided through a valve needle sleeve, and the sprue wire is connected with the hot nozzle in a screwing mode through threads. The utility model discloses with the requirement that satisfies different occasions, can simplify forming process simultaneously, improve plastic product appearance quality and stability.

Description

Servo electric needle valve hot runner device
Technical Field
The utility model relates to a hot runner technical field in the aspect of the thermoplasticity forming die, concretely relates to servo electronic needle valve hot runner device.
Background
With the continuous development of the injection molding industry, the quality requirements of the market on injection molding products are gradually increased, and the hot runner system is more widely applied, wherein the hot runner system is most used particularly in a needle valve type hot runner system. The needle valve type hot runner system is widely applied to plastic molds of most injection molding products due to the advantages of small gate trace, beautiful appearance, small pressure loss of the system and the like of injection molding products, and usually, the piston in the cylinder and the oil cylinder is driven to reciprocate up and down by air pressure and oil pressure so as to drive the valve needle to move to control the opening and closing of the corresponding injection port. The air pressure and oil pressure driving has the defects of easy leakage, unadjustable speed and position, poor stability, time lag, delay in multipath motion and the like, and the series of problems have great influence on the quality of high-precision multi-cavity injection molding plastic products. The servo electric needle valve hot runner has the advantages of simplicity and convenience in operation, high response speed, high reliability and good synchronism. The opening and closing speed and position of each valve port can be adjusted according to different process requirements of different products, the valve port can be controlled in multiple sections, the maintenance is convenient, the appearance quality of the plastic product is obviously improved, and the valve port is particularly used for realizing the consistency of the weight and the quality of each cavity product in a multi-point cavity die.
To sum up, the utility model designs a servo electronic needle valve hot runner device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a servo electronic needle valve hot runner device to the not enough of existence on the prior art, the utility model aims at providing a molding process can be simplified simultaneously to satisfy the requirement of different occasions, improves plastic product appearance quality and stability.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a servo electric needle valve hot runner device comprises a servo electric push rod device, a connecting rod, a driving base, a splitter plate and a hot nozzle, wherein the servo electric push rod device, the connecting rod and the driving base are assembled along the horizontal direction of an X axis, and the driving base and the hot nozzle are respectively connected with the splitter plate in a 90-degree manner along the vertical direction of a Z axis; the servo electric push rod device is connected with the template through a first fastening screw and a positioning pin; the driving base is positioned with the flow distribution plate through a pin, and is connected with the flow distribution plate through a second fastening screw; the flow distribution plate is supported by a screw cushion block and connected by a third fastening screw, and the valve needle sleeve is arranged in the flow distribution plate; the hot nozzle comprises a valve needle and a sprue wire, the hot nozzle is connected with the flow distribution plate in a thread mode, the valve needle is connected with a valve needle fixing block in the driving part and guided through a valve needle sleeve, and the sprue wire is connected with the hot nozzle in a screwing mode through threads.
Preferably, the servo electric push rod device comprises a servo motor, a speed reducing mechanism and a driving part, wherein the servo motor is connected with external control equipment through a cable; the speed reducing mechanism comprises a first gear, a second gear, a third gear, a fourth gear, a gear shaft, a small ball bearing with a flange, a shaft key, a base and a rear bottom plate; the first gear is connected with the shaft end of the servo motor; the first gear is meshed with the second gear, the second gear is connected with the third gear through a gear shaft, and positioning and guiding are carried out through a small ball bearing with a flange; the third gear is meshed with a fourth gear, and the fourth gear is connected with a ball screw in the driving part through a shaft key; the driving part comprises a ball screw, a nut and a guide sleeve, and the shaft sleeve, the planar thrust ball bearing and the angular contact bearing are assembled with the ball screw from bottom to top along the vertical direction of the axis; the guide ring is arranged in the guide sleeve and is matched with the driving push rod to play a role in guiding.
Preferably, all the gears in the speed reducing mechanism are ground and have the precision grade of 6.
Preferably, a nut in the driving part is connected with a driving push rod through a fastening screw, a ball screw is screwed into the nut for positioning, a guide sleeve and a base are matched and positioned in a shaft hole mode, a guide block is arranged in the guide sleeve, and the driving push rod plays a role in rotation stopping and orientation through the guide block; the head of the driving push rod is a T-shaped hanging table and is connected with the connecting rod.
Preferably, a sealing ring is arranged at the inner hole of the guide sleeve.
Preferably, two ends of the connecting rod are provided with a T-shaped hanging table and a T-shaped hanging groove; the T-shaped hanging table is connected with a push rod fixing block in the driving base, and the T-shaped hanging groove is connected with a driving push rod in the servo electric push rod device; and a fastening thread hole is arranged at the T-shaped hanging groove.
Preferably, the driving base comprises a shell, a valve needle fixing block, a shifting fork and a push rod fixing block, and the driving base fixing block is connected with the push rod fixing block through a positioning shaft; one end of the shifting fork is matched and positioned with the valve needle fixing block in a shaft hole mode, the other end of the shifting fork is matched and positioned with the driving base fixing block in a shaft hole mode, and the shifting fork is connected with the shell through the supporting shaft.
Preferably, the outer shell of the driving base is designed and processed by adopting an integral structure so as to ensure the use precision and strength.
Preferably, the push rod fixing block in the driving base is connected with a T-shaped hanging table in the connecting rod by adopting a T-shaped hanging groove, and a fastening screw hole is formed in the T-shaped hanging groove; the left and right directions of the push rod fixing block and the driving base fixing block adopt a clearance fit mode, and the push rod fixing block can swing left and right at a small angle after being positioned and connected by the positioning shaft so as to meet the requirement of the occasion that the coaxiality of the driving push rod and the push rod fixing block is inconsistent in the installation and use process due to processing.
Preferably, the valve needle fixing block in the driving base adopts a T-shaped hanging groove structure, so that the valve needle fixing block is convenient to assemble with a valve needle in a hot nozzle.
The utility model has the advantages that: the utility model discloses a servo electronic needle valve hot runner device controllability is strong, operate steadily, repeatability is high, and extensive applicability is general, and speed and position are opened and closed to the valve port controllable, are convenient for install and maintain, have good performance simultaneously, can simplify molding process, improve the stability of goods.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the servo electric push rod mechanism of the present invention;
FIG. 3 is a cross-sectional view of the servo electric push rod mechanism of the present invention;
fig. 4 is a cross-sectional view of the connecting rod of the present invention;
FIG. 5 is a side view of the driving base of the present invention;
fig. 6 is a cross-sectional view of the driving base of the present invention;
FIG. 7 is an assembled view of the present invention in a mold;
fig. 8 is a perspective view of the connecting rod of the present invention;
fig. 9 is a schematic structural view of the valve needle fixing block of the present invention;
fig. 10 is a schematic structural view of the shifting fork of the present invention;
fig. 11 is a schematic structural diagram of the driving base fixing block of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1 to 11, the following technical solutions are adopted in the present embodiment: a servo electric needle valve hot runner device comprises a servo electric push rod device 1, a connecting rod 2, a driving base 3, a splitter plate 4 and a hot nozzle 5, wherein the servo electric push rod device 1, the connecting rod 2 and the driving base 3 are assembled along the horizontal direction of an X axis, and the driving base 3 and the hot nozzle 5 are respectively connected with the splitter plate 4 in a 90-degree manner along the vertical direction of a Z axis; the servo electric push rod device 1 is connected with the template through a first fastening screw 14 and a positioning pin; the driving base 3 is positioned with the flow distribution plate 4 through a pin 37, and the driving base 3 is connected with the flow distribution plate 4 through a second fastening screw 38; the flow distribution plate 4 is supported by a screw cushion block 43 and connected by a third fastening screw 42, and a valve needle sleeve 41 is installed in the flow distribution plate 4; the hot nozzle 5 comprises a valve needle 51 and a sprue wire 52, the hot nozzle 5 is connected with the flow distribution plate 4 in a screw thread mode, the valve needle 51 is connected with the valve needle fixing block 32 in the driving part and is guided by the valve needle sleeve 41, and the sprue wire 52 is screwed with the hot nozzle 5 through the screw thread.
It is worth noting that the servo electric push rod device comprises a servo motor 11, a speed reducing mechanism 12 and a driving part 13, wherein the servo motor 11 is connected with external control equipment through a cable; the speed reducing mechanism 12 comprises a first gear 121, a second gear 122, a third gear 123, a fourth gear 124, a gear shaft 125, a small ball bearing with a flange 126, a shaft key 127, a base 128 and a rear bottom plate 129; the first gear 121 is connected with the shaft end of the servo motor 11; the first gear 121 and the second gear 122 are meshed with each other, the second gear 122 and the third gear 123 are connected through a gear shaft 125, and positioning and guiding are carried out through a small ball bearing 126 with a flange; the third gear 123 is meshed with the fourth gear 124, and the fourth gear 124 is connected with the ball screw 131 in the driving part 13 through a shaft key 127; the driving part 13 comprises a ball screw 131, a nut 132 and a guide sleeve 136, and a shaft sleeve 133, a plane thrust ball bearing 134 and an angular contact bearing 135 are assembled with the ball screw 131 from bottom to top along the vertical direction of the axis; the guide sleeve 136 is provided with a guide ring 137 which is matched with the driving push rod 138 for guiding.
It is to be noted that all the gears in the speed reduction mechanism 12 are ground and have a precision level of 6.
It should be noted that, in the driving part 13, the nut 132 is connected with the driving push rod 138 through a fastening screw, the ball screw 131 is screwed into the nut 132, the guide sleeve 136 and the base 128 are positioned in a shaft hole manner, the guide block 139 is installed in the guide sleeve 136, and the driving push rod 138 plays a role in rotation stopping and orientation through the guide block 139; the head of the driving push rod 138 is a T-shaped hanging table and is connected with the connecting rod.
It is noted that the inner hole of the guiding sleeve 136 is provided with a sealing ring.
It is worth noting that two ends of the connecting rod 2 are provided with a T-shaped hanging platform 21 and a T-shaped hanging groove 22; the T-shaped hanging table 21 is connected with a push rod fixing block 36 in the driving base 3, and the T-shaped hanging groove 22 is connected with a driving push rod 138 in the servo electric push rod device 1; and a fastening thread hole 23 is arranged at the T-shaped hanging groove 22.
It is worth noting that the driving base 3 comprises a shell 31, a valve needle fixing block 32, a shifting fork 33 and a push rod fixing block 36, wherein the driving base fixing block 34 is connected with the push rod fixing block 36 through a positioning shaft 35; one end of the shifting fork 33 is matched and positioned with the valve needle fixing block 32 in a shaft hole mode, the other end of the shifting fork 33 is matched and positioned with the driving base fixing block 34 in a shaft hole mode, and the shifting fork 33 is connected with the shell 31 through a supporting shaft 39.
It should be noted that the housing 31 of the driving base 3 is designed and processed as a whole structure to ensure the use precision and strength.
It is worth noting that the push rod fixing block 36 in the driving base 3 is connected with the T-shaped hanging table 21 in the connecting rod 2 by adopting a T-shaped hanging groove, and a fastening screw hole is arranged at the T-shaped hanging groove; the push rod fixing block 36 and the driving base fixing block 34 are in clearance fit in the left and right directions, and the push rod fixing block 36 can swing left and right at a slight angle after being positioned and connected by the positioning shaft 35, so that the situation that the coaxiality of the driving push rod 138 and the push rod fixing block 36 in the servo electric push rod device 1 is inconsistent due to processing in the installation and use processes is met.
In addition, the valve needle fixing block 32 in the driving base 3 adopts a T-shaped hanging groove structure, so that the valve needle fixing block is convenient to assemble with the valve needle 51 in the hot nozzle 5.
The working process of the specific embodiment is as follows: when the device normally works, an injection molding machine provides an output signal to external control equipment, the external control equipment is in butt joint with a servo motor 11 in a servo electric push rod device through a cable, the servo motor executes actions and transmits driving force to a fourth gear 124 through a first gear 121, a second gear 122 and a third gear 123 to drive a ball screw 131 in a driving part 13, a nut 132 in the driving part 13 is connected with a driving push rod 138, and the ball screw 131 is matched with the nut 132. The head of the driving push rod 138 adopts a T-shaped hanging table type, and the forward and backward movement of the driving push rod 138 is transmitted to the mechanism in the driving base 3 through the connecting rod 2 to move, so that the opening and closing of the valve port are realized. As shown in fig. 3.
The opening and closing action process of the valve port in the device is as follows: when the external control equipment receives a signal and sends a positive direction pulse instruction, a servo motor starts to do horizontal rotation movement clockwise and transmits the horizontal rotation movement to a ball screw 131 through a gear set, the ball screw 131 is matched with a nut 132 to convert the clockwise horizontal rotation movement into horizontal linear retraction movement, so that a driving push rod 138 retracts, a push rod fixing block 36 in a driving base 3 is driven by a connecting rod 2 to drive a shifting fork to rotate rightwards, a valve needle fixing block 32 is driven to drive a valve needle to move upwards along the vertical direction, and the valve port is in an open state; when external controlgear received signal sent negative direction pulse instruction, servo motor started anticlockwise to be horizontal rotation motion, transmitted ball screw 131 through the gear train, ball screw 131 and nut 132 cooperation, and then convert anticlockwise horizontal rotation motion into horizontal direction straight line antedisplacement motion, make drive push rod 138 antedisplacement, thereby drive push rod fixed block 36 pulling shift fork to the left-hand motion in the drive base 3 through connecting rod 2, order to order about needle fixed block 32 to drive the needle and move along vertical direction downstream, make the valve port be in the closed condition.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A servo electric needle valve hot runner device is characterized by comprising a servo electric push rod device (1), a connecting rod (2), a driving base (3), a splitter plate (4) and a hot nozzle (5), wherein the servo electric push rod device (1), the connecting rod (2) and the driving base (3) are assembled along the horizontal direction of an X axis, and the driving base (3) and the hot nozzle (5) are respectively connected with the splitter plate (4) in a 90-degree manner along the vertical direction of a Z axis; the servo electric push rod device (1) is connected with the template through a first fastening screw (14) and a positioning pin; the driving base (3) is positioned with the flow distribution plate (4) through a pin (37), and the driving base (3) is connected with the flow distribution plate (4) through a second fastening screw (38); the flow distribution plate (4) is supported by a screw cushion block (43) and is connected by a third fastening screw (42), and a valve needle sleeve (41) is arranged in the flow distribution plate (4); the hot nozzle (5) comprises a valve needle (51) and a sprue wire (52), the hot nozzle (5) is connected with the flow distribution plate (4) in a thread mode, the valve needle (51) is connected with a valve needle fixing block (32) in the driving part and guided by a valve needle sleeve (41), and the sprue wire (52) is connected with the hot nozzle (5) in a screwing mode through threads.
2. The servo electric needle valve hot runner device is characterized in that the servo electric needle valve hot runner device comprises a servo motor (11), a speed reducing mechanism (12) and a driving part (13), wherein the servo motor (11) is connected with external control equipment through a cable; the speed reducing mechanism (12) comprises a first gear (121), a second gear (122), a third gear (123), a fourth gear (124), a gear shaft (125), a small ball bearing (126) with a flange, a shaft key (127), a base (128) and a rear bottom plate (129); the first gear (121) is connected with the shaft end of the servo motor (11); the first gear (121) is meshed with the second gear (122), the second gear (122) is connected with the third gear (123) through a gear shaft (125), and positioning and guiding are carried out through a small ball bearing (126) with a flange; the third gear (123) is meshed with a fourth gear (124), and the fourth gear (124) is connected with a ball screw (131) in the driving part (13) through a shaft key (127); the driving part (13) comprises a ball screw (131), a nut (132) and a guide sleeve (136), and a shaft sleeve (133), a plane thrust ball bearing (134) and an angular contact bearing (135) are assembled with the ball screw (131) from bottom to top along the vertical direction of an axis; a guide ring (137) is arranged in the guide sleeve (136) and is matched with the driving push rod (138) to play a guiding role.
3. The servo electric needle valve hot runner device according to claim 2, wherein all gears in the speed reducing mechanism (12) are ground and have a precision grade of 6.
4. The hot runner device for the servo motor-driven needle valve as claimed in claim 1, wherein a nut (132) in the driving part (13) is connected with a driving push rod (138) through a fastening screw, a ball screw (131) is screwed into the nut (132), a guide sleeve (136) and a base (128) are matched and positioned in an axial hole mode, a guide block (139) is installed in the guide sleeve (136), and the driving push rod (138) plays a role in rotation stopping and orientation through the guide block (139); the head of the driving push rod (138) is a T-shaped hanging table and is connected with the connecting rod.
5. The servo motor-driven needle valve hot runner device as claimed in claim 4, wherein a sealing ring is arranged at an inner hole of the guide sleeve (136).
6. The servo electric needle valve hot runner device according to claim 1, wherein a T-shaped hanging table (21) and a T-shaped hanging groove (22) are arranged at two ends of the connecting rod (2); the T-shaped hanging table (21) is connected with a push rod fixing block (36) in the driving base (3), and the T-shaped hanging groove (22) is connected with a driving push rod (138) in the servo electric push rod device (1); and a fastening thread hole (23) is arranged at the T-shaped hanging groove (22).
7. The servo electric needle valve hot runner device as claimed in claim 1, wherein the driving base (3) comprises a housing (31), a needle fixing block (32), a shifting fork (33) and a push rod fixing block (36), and the driving base fixing block (34) is connected with the push rod fixing block (36) through a positioning shaft (35); one end of the shifting fork (33) is matched and positioned with the valve needle fixing block (32) in a shaft hole mode, the other end of the shifting fork (33) is matched and positioned with the driving base fixing block (34) in a shaft hole mode, and the shifting fork (33) is connected with the shell (31) through a supporting shaft (39).
8. A servo motor-operated needle valve hot runner apparatus as claimed in claim 1, wherein the housing (31) of the driving base (3) is of a unitary construction.
9. The servo electric needle valve hot runner device according to claim 1, wherein a push rod fixing block (36) in the driving base (3) is connected with a T-shaped hanging table (21) in the connecting rod (2) by adopting a T-shaped hanging groove, and a fastening screw hole is formed in the T-shaped hanging groove; the push rod fixing block (36) is in clearance fit with the driving base fixing block (34) in the left and right directions, and is connected with the rear push rod fixing block (36) in a positioning mode through a positioning shaft (35).
10. The servo electric needle valve hot runner device as claimed in claim 1, wherein the valve needle fixing block (32) in the driving base (3) adopts a T-shaped hanging groove structure, and the valve needle fixing block (32) is assembled and matched with the valve needle (51) in the hot nozzle (5).
CN201920804716.5U 2019-05-30 2019-05-30 Servo electric needle valve hot runner device Active CN210211226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920804716.5U CN210211226U (en) 2019-05-30 2019-05-30 Servo electric needle valve hot runner device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920804716.5U CN210211226U (en) 2019-05-30 2019-05-30 Servo electric needle valve hot runner device

Publications (1)

Publication Number Publication Date
CN210211226U true CN210211226U (en) 2020-03-31

Family

ID=69928812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920804716.5U Active CN210211226U (en) 2019-05-30 2019-05-30 Servo electric needle valve hot runner device

Country Status (1)

Country Link
CN (1) CN210211226U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3892439A1 (en) * 2020-04-08 2021-10-13 Mold-Masters (2007) Limited A molten plastic delivery system with push-pull cable actuation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3892439A1 (en) * 2020-04-08 2021-10-13 Mold-Masters (2007) Limited A molten plastic delivery system with push-pull cable actuation
US11731330B2 (en) 2020-04-08 2023-08-22 Mold-Masters (2007) Limited Molten plastic delivery system with push-pull cable actuation

Similar Documents

Publication Publication Date Title
CN103950144B (en) Electric-hydraulic combined formula injection (mo(u)lding) machine and control method thereof
CN203470823U (en) Manual mold opening and closing device for metal mold casting
CN201009410Y (en) Full-electric plastic injection machine control device
CN210211226U (en) Servo electric needle valve hot runner device
CN104985756A (en) Injection molding die for three-way pipe
CN102358009A (en) Injection mold screw thread core pulling mechanism
CN106827463B (en) Electric adjusting device for head die orifice gap of blow molding machine
CN106812761A (en) Crank block type feedback digital hydraulic cylinder
CN116653243B (en) Two-plate intelligent mode locking part based on multi-core control
CN213618178U (en) Hybrid injection molding machine
CN212045942U (en) Mould locking oil cylinder holding device with stroke shortening mechanism for blow molding machine
CN206592380U (en) Crank block type feedback digital hydraulic cylinder
CN201712135U (en) Novel two-plate internal and external circulation composite hydraulic mold closing mechanism
CN105751446B (en) A kind of core-pulling demolding device based on hollow product
CN208788941U (en) A kind of injection mechanism for injection molding machine
CN115179516A (en) Integrated digital hydraulic cylinder precision control mold opening and closing device of injection molding machine
CN216032211U (en) Servo electric needle valve cold runner device
CN203077533U (en) Double-color plastic injection machine
CN213618179U (en) Hybrid injection molding machine
CN205044102U (en) Injection mechanism of injection machine
CN213860536U (en) Mold closing structure of injection mold
CN201931565U (en) Large multi-cavity threaded demoulding mechanism
CN111347657B (en) Clamping device with stroke shortening mechanism for mold locking oil cylinder for blow molding machine
WO2016050002A1 (en) Electro-hydraulic hybrid injection mechanism
CN201471689U (en) Single point needle-valve type hot nozzle used for injection mould

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant